A193 B16 CrMoV - ASTM A193/A193M-2025

Grade	A193 B16
Other Names
Corresponding Standard	ASTM A193/A193M-2025 Alloy-Steel and Stainless Steel Bolting for High Temperature or High Pressure Service and Other Special Purpose Applications
Classification	Alloy Steel
Properties	High-Temperature Resistance Good Machinability

A193 B16 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Mo	V	Al
Minimum Value	0.36	0.15	0.45	-	-	0.8	0.5	0.25	-
Maximum Value	0.47	0.35	0.7	0.035	0.04	1.15	0.65	0.35	0.015

• The intentional addition of Bi, Se, Te, and Pb is not permitted

A193 B16 Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
d≤M64	Tempering °C ≥650	≥860	≥725	≥18	≥50	≥321HBW or ≥35HRC
M64<d≤M100	Tempering °C ≥650	≥760	≥655	≥17	≥45	≥321HBW or ≥35HRC
M100<d≤M200	Tempering °C ≥650	≥690	≥585	≥16	≥45	≥321HBW or ≥35HRC

Approximate Comparison Table Structural Alloy Steel

A193B16 Corresponding Standards(Same grade name, different standards)

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